arch/sparc/include/asm/prom.h

   1 #ifndef _SPARC_PROM_H
   2 #define _SPARC_PROM_H
   3 #ifdef __KERNEL__
   4
   5 /*
   6  * Definitions for talking to the Open Firmware PROM on
   7  * Power Macintosh computers.
   8  *
   9  * Copyright (C) 1996-2005 Paul Mackerras.
  10  *
  11  * Updates for PPC64 by Peter Bergner & David Engebretsen, IBM Corp.
  12  * Updates for SPARC by David S. Miller
  13  *
  14  * This program is free software; you can redistribute it and/or
  15  * modify it under the terms of the GNU General Public License
  16  * as published by the Free Software Foundation; either version
  17  * 2 of the License, or (at your option) any later version.
  18  */
  19 #include <linux/types.h>
  20 #include <linux/proc_fs.h>
  21 #include <linux/mutex.h>
  22 #include <asm/atomic.h>
  23
  24 #define OF_ROOT_NODE_ADDR_CELLS_DEFAULT 2
  25 #define OF_ROOT_NODE_SIZE_CELLS_DEFAULT 1
  26
  27 #define of_compat_cmp(s1, s2, l)        strncmp((s1), (s2), (l))
  28 #define of_prop_cmp(s1, s2)             strcasecmp((s1), (s2))
  29 #define of_node_cmp(s1, s2)             strcmp((s1), (s2))
  30
  31 typedef u32 phandle;
  32 typedef u32 ihandle;
  33
  34 struct property {
  35         char    *name;
  36         int     length;
  37         void    *value;
  38         struct property *next;
  39         unsigned long _flags;
  40         unsigned int unique_id;
  41 };
  42
  43 struct of_irq_controller;
  44 struct device_node {
  45         const char      *name;
  46         const char      *type;
  47         phandle node;
  48         char    *path_component_name;
  49         char    *full_name;
  50
  51         struct  property *properties;
  52         struct  property *deadprops; /* removed properties */
  53         struct  device_node *parent;
  54         struct  device_node *child;
  55         struct  device_node *sibling;
  56         struct  device_node *next;      /* next device of same type */
  57         struct  device_node *allnext;   /* next in list of all nodes */
  58         struct  proc_dir_entry *pde;    /* this node's proc directory */
  59         struct  kref kref;
  60         unsigned long _flags;
  61         void    *data;
  62         unsigned int unique_id;
  63
  64         struct of_irq_controller *irq_trans;
  65 };
  66
  67 struct of_irq_controller {
  68         unsigned int    (*irq_build)(struct device_node *, unsigned int, void *);
  69         void            *data;
  70 };
  71
  72 #define OF_IS_DYNAMIC(x) test_bit(OF_DYNAMIC, &x->_flags)
  73 #define OF_MARK_DYNAMIC(x) set_bit(OF_DYNAMIC, &x->_flags)
  74
  75 extern struct device_node *of_find_node_by_cpuid(int cpuid);
  76 extern int of_set_property(struct device_node *node, const char *name, void *val, int len);
  77 extern struct mutex of_set_property_mutex;
  78 extern int of_getintprop_default(struct device_node *np,
  79                                  const char *name,
  80                                  int def);
  81 extern int of_find_in_proplist(const char *list, const char *match, int len);
  82 #ifdef CONFIG_NUMA
  83 extern int of_node_to_nid(struct device_node *dp);
  84 #else
  85 #define of_node_to_nid(dp)      (-1)
  86 #endif
  87
  88 extern void prom_build_devicetree(void);
  89
  90 /* Dummy ref counting routines - to be implemented later */
  91 static inline struct device_node *of_node_get(struct device_node *node)
  92 {
  93         return node;
  94 }
  95 static inline void of_node_put(struct device_node *node)
  96 {
  97 }
  98
  99 /* These routines are here to provide compatibility with how powerpc
 100  * handles IRQ mapping for OF device nodes.  We precompute and permanently
 101  * register them in the of_device objects, whereas powerpc computes them
 102  * on request.
 103  */
 104 extern unsigned int irq_of_parse_and_map(struct device_node *node, int index);
 105 static inline void irq_dispose_mapping(unsigned int virq)
 106 {
 107 }
 108
 109 /*
 110  * NB:  This is here while we transition from using asm/prom.h
 111  * to linux/of.h
 112  */
 113 #include <linux/of.h>
 114
 115 extern struct device_node *of_console_device;
 116 extern char *of_console_path;
 117 extern char *of_console_options;
 118
 119 #endif /* __KERNEL__ */
 120 #endif /* _SPARC_PROM_H */